python3字典排序

思路

• 用字典排序，分数为key 姓名为value
• 考虑到会存在分数相同的同学，将姓名(append)保存到一个列表中
• 将分数排序后，根绝列表从前往后打印value即可

  # 字典
  while True:
    try:
        dic = {}
        n = int(input())
        k = int(input())  
        for i in range(n):
            a,b = input().split()
            if int(b) in dic:
                dic[int(b)].append(a)
            else:
                dic[int(b)] = [a]
        if k == 0:
            res = sorted(dic,reverse=True)
            for i in res:
                for j in range(len(dic[i])):
                    k = dic[i][j]
                    print(f'{k} {i}')
        else:
            res = sorted(dic)
            for i in res:
                for j in range(len(dic[i])):
                    k = dic[i][j]
                    print(f'{k} {i}')
    except:
        break
  
  

```